NVIDIA GeForce RTX 5070 vs NVIDIA GeForce GTX 660
GPU · Specs Compare
Graphics Card
Release Date
Mar 2025
Sep 2012
Generation
GeForce 50
GeForce 600
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
2325 MHz
980 MHz
Boost Clock
2512 MHz
1032 MHz
Memory Clock
1750 MHz
1502 MHz
Memory
Memory Size
12GB
2GB
Memory Type
GDDR7
GDDR5
Memory Bus
192bit
192bit
Bandwidth
672.0GB/s
144.2GB/s
Render Config
SM Count
48
—
Shading Units
6144
960
TMUs
192
80
ROPs
80
24
Tensor Cores
192
—
RT Cores
48
—
L1 Cache
128 KB (per SM)
16 KB (per SMX)
L2 Cache
48 MB
384 KB
Theoretical Performance
Pixel Rate
201.0 GPixel/s
20.64 GPixel/s
Texture Rate
482.3 GTexel/s
82.56 GTexel/s
FP16 (half)
30.87 TFLOPS
—
FP32 (float)
30.87 TFLOPS
1.981 TFLOPS
FP64 (double)
482.3 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
GB205
GK106
GPU Variant
GB205-300-A1
GK106-400-A1
Architecture
Blackwell 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
5 nm
28 nm
Transistors
31.1 billion
2.54 billion
Die Size
263 mm²
221 mm²
Board Design
TDP
250W
140W
Suggested PSU
600 W
300 W
Outputs
1x HDMI 2.1b3x DisplayPort 2.1b
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
1x 16-pin
1x 6-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.4
1.1
CUDA
12.0
3.0
Shader Model
6.8
5.1
Benchmark
3DMark Time Spy
22,544
1,194
3DMark Time Spy Extreme
10,789
260
3DMark Speed Way
5,896
—
Blender
6,218
111
OctaneBench
—
27
▲ Specs Compare
Data sourced from official specifications and benchmark tests.